Grinding or polishing apparatus.



W. F. BARRY.

GRINDING 0R POLISHING APPARATUS.

APPLICATION FILED FEB. 6| l9l 7- Patented J an. 22, 1918.-.

WALTER F. BARRY, 0! ORANGE, JERSEY.

GRINDING OR POLISHING APPARATUS.

To all whom it may camera.

Be it known that I, WALTER F. BARRY, a

I citizen of the United States, residing at Orange, in the county ofEssex and State of New Jersey, have invented certain new and usefulImprovements in Grinding or Poli'shing Apparatus; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to the accomanying drawings, and to characters of re erence marked thereon, whichform a part of this specification.

This invention relates, generally, to improvements in that class ofapparatus adapted for use in the grinding or polishing of articles; andthe resent invention has reference, more particularly, to a novelapparatus which is more especially ada ted for the use of dentists forgrinding an polishin gold and porcelain teeth.

e present invention has for its principal objects to provide a grindingor polishing apparatus of the general character hereinafter set forth,combining with a grinding or polishing wheel an inclosing casing orshell made in part or in its entirety of lass or other suitabletransparent material w ich will permit light to traverse through thesurrounding casing or shell of the apparatus, so that all portions ofthe grinding or polishing wheel, as well as the work which 1s heldagainst the surface of the wheel, will be illumined, and that thesurrounding portions of the casing or shell will. not throwobjectionable shadows upon the work, to the detriment of properly andperfectly finishing the work, or to the detrlment of v the operator.

The invention has for its further object to provide a novel, efiicient,clean and simple ap aratus, the surrounding casing or shell 0 thegrinding or polishing wheel being light, so that it can easily be placedin its operative position, or can be readily removed for the removalfrom the an and the saving of the quantities of goldust collectedtherein.

The invention has for another object the use in connection with theshell or casing of the grinding or polishing apparatus, of a novel andsimple arrangement and construction of lubricating means for conveying alubricant to the grinding or polishing Specification of Letters Patent.

Patented J an. 22, 1918.

Application filed February 6, 1917. Serial No. 146,869.

surface of the grinding or polishing wheel of the apparatus; and,furthermore, to pro- V146, in connection with the apparatus an adustable lubricant-conveyin means, in the form of a wick or the like, t eend-portion of which can at all times be maintained in proper contact.with the grinding or polishlng surface of the wheel, as it wears awaywith constant use, for the perfect lubrication of sald grinding orpolishing surface,

Other objects of the present invention not,

at this time more particularly enumerated will be clearly understoodfrom the followng detailed description of the present invention.

With the various objects of the present invention in view, the saidinvention consists primarily, in the novel grinding or polishingapparatus hereinafter set forth; and, the invention consists,furthermore, in the novel arrangements and combinations of the variousdevlces and parts, all of which will be more fully described in thefollowing specification, and then finally embodied in the clauses of theclaims which are appended to and which form an essential part of thesaid specification.

The invention is clearly illustrated in the accompanying drawings, inwhich: Figure 1 is a front elevation of a grinding or polishingapparatus illustrating one embodiment of the principles of the presentinvention; and Fig. 2 is a transverse vertical section of the same, saidsection being taken on line 2-2 in said Fig. 1, looking in the directionof the arrow at.

Similar characters of reference are employed in the said above describedviews, to indicate corresponding parts.

'.Referring now to the said drawings, the reference-character 1indicates a suitable grinding or polishing wheel, mounted upon alshaft 2which is rotatably mounted in a suitable bearing, as 3, and may besuitably driven from a driving wheel 4, or other suitable drivingelement. Removably disposed about the said driving or polishing wheel,by being placed upon a table, or bench, as 5, or any other suitablesupport is a casing or shell, as 6. The shell or casing consists,essentially, of a bottom-member 7 a laterally extendin front-member 8,and a pair of longitudlnally extending sidemembers 9, formed at theirrear portions with suitably enlarged parts or side-portions saidenlarged parts or SidQ-P I'UOW be ing connected with each other and withthe rear portion of the said bottom-member 7 by a curved or othersuitably-shaped wall, as 11, substantially as shown in Fig. 2 of thedrawings. The various side or wall-members of the shell or casing thusformed provide what may be termed a collecting panwhich is open at itsfront portion and at its rear portion has an inclosing hood, all ofwhich, when made in glass, or the like, are integral so as to provide aone-piece apparatus.

Integrally united with the upper portion 12 of the said hood andextendinginwardly and forwardly, at an acute angle to the lower or innersurface-portion 13 of said member 12 is a tube-like element or member 14which provides a receiver in which is telescopically disposed, foradjustment, and removably arranged another tube-like element or member15. The inner end of said member 15 is open, as at 16, and has its lowerend 17 projecting from the lower open endportion of the tube-likeelement or member 14. Suitably connected with the said lower end 17 ofthe member 15 is a nozzle or other suitably shaped lubricant-conveyer,as 18, in which is disposed, in a suitable manner, a conveying means, asa wick 19, the projecting end-portion of which is in contact with thegrinding or polishing surface'of the v grinding or polishing wheel 1, asshown. Suitably secured to the body-memberof the said lubricant-conveyer18 are a number of spring-like fingers, as 20, which extend upwardly andrearwardly, and have their free ends in frictional retaining engagementor contact with the outer surface-portions of the said element or member14, to properly retain the several members in their connected as well asin their adjustable relation, and still permitting the removal ordisconnection of the member 15 and its lubricantconveyer from saidmember 14, as will be evident. Adjustment of the wick 19 may be made bymeans of a wick-adjusting device, as 21, or any other means suitable forthe purpose. 7

The lubricant usually employed may be a mixture of glycerin and water,the glycerin preventing a too rapid flowing or dripping of the lubricantfrom the end of the nozzle. Sponge or other suitable matter, as 22, maybe placed within the said tubular element or member 15, as shown in Fig.2 of the drawing, for retaining the lubricant in proper quantity withinsaid member or element, as willbe understood. That portion of the saidmember 14 where it is united with the member 12 of the hood provides asuitable inlet, as 23, for pouring the lubricant into the said elementor member 15 and upon the sponges contained therein.

The grinding or polishing operations of the apparatus will be clearlyunderstood lar receiving from an inspection of the drawings, and neednot therefore be further described.

The device is simple in its construction, and the pan, after thegrinding or polishing operation, can be readily handled and removed frombeneath the grinding or polishing wheel, for cleansing purposes and forgathering up the sediment collected in the pan, from which the gold-dustor particles can be reclaimed.

While I prefer to construct the casing or shell of the apparatus ofglass for the purpose hereinbefore stated, I still may desire toconstruct the same of metal.

I am also aware that some changes may be made in the generalarrangements and combinations of the several devices and parts, as wellas in the details of the construction of the said parts, withoutdeparting from the scope of the present invention as setforth in theforegoing specification, and as defined in the clauses of the claimswhichare appended thereto. Hence, I do not limit my present invention tothe exact arrangements and combinations of the several devices and partsas described in the foregoing specification, nor do I confine myself tothe exact details of the construction of the said parts, as illustratedin the accompanying drawings.

I claim 1. grinding or polishing apparatus comprlslng in combinationwith a grinding or polishing element. a pan-shaped casing formed with ahood-shaped portion, a tubuelement connected with said hood-shapedportion, and a lubricant-contaimng element connected with said receivingelement.

2. A grinding or polishing apparatus comprising in combination with agrinding or polishing element, a pan-shaped casing formed with ahood-shaped portion, a tubular receiving element connected with saidhood-shaped portion, and a lubricant-containing element slidably andadjustably connected with said receiving element.

3. grinding or polishing apparatus comprising in combination with agrinding or polishing element, a pan-shaped casing formed with ahood-shaped portion, a tubular receiving element connected with saidhood-shaped portion, a lubricant-containing element slidably andadjustably connected with said receiving" element, a wickcontainingconveyer connected with said lubricant-containing element, awick-adjusting means connected with said conveyer, and means connectedwith said conveyer and cooperating with said lubricantcontaining elementand with said receiving element for retaining said lubricant-containingelement in its adjusted relation to said receiving element.

4. A grinding or polishing apparatus comprising in combination with agrinding or polishing element. a pan-shaped casing formed with ahood-shaped portion. a tubular receiving element connected with saidhood-shaped portion. a lubricant-containing element, slidably and:uljustablv connected with said receiving element, and spring lingersconnected with and extending from said lubricant-containing element,said fingers having portions in slidable engagement with said receivingelement for retaining said lnl)ricant-containing element in its adjustedrelation to said receiving element.

5. A grindlng or polishing apparatus comprising in combination with agrinding or polishing element, a pan-shaped casing formed with ahood-shaped portion, a tubular receiving element connected With saidhood-shaped portion, a tubular lubricantcontaining elementtelescopically mounted in said receiving element, and a Wick-containingelement connected with said lubricant-containing element.

In testimony that I claim the invention set forth above I have hereuntoset my hand this 31st day of January, 1917 WALTER F. BARRY.

Witnesses:

FREDK C. FRAENTZEL, FREDK W. FRAENTZEL.

